Lighting device



FIG. 1 is a perspective view of the article;

FIG. 2 is a top view of the article;

FIG. 3 is a side view of the article;

FIG. 4 is another side view of the article;

FIG. 5 is a bottom view of the article;

FIG. 6 is a front view of the article; and,

FIG. 7 is a rear view of the article.

The ornamental design for “a lighting device”, as shown and described.